Specifications
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Alvium CSI-2 Cameras User Guide V2.6.2
Exposure time, bandwidth, and frame rates
Exposure time values
Interdependencies between controls affect each other. See
Bandwidth
CSI-2 Lane Count and CSI-2 Clock
Alvium cameras require higher bandwidths than supported by only one CSI-2 lane,
especially with low CSI-2 clock frequencies. We recommend you to do extensive
testing to find the best setup for maximum frame rates, regarding:
•
CSI-2 lane count
•
CSI-2 Clock
.
Dropped frames or a viewer issue?
Alvium CSI-2 cameras are designed for a maximum bandwidth that does not
exceed board abilities. However, if your setup does not provide sufficient
bandwidth, frames are dropped. Even if bandwidth is sufficient, embedded boards
may not be able to display all images of an image stream. In this case, only the
display is affected but no dropped frames occur.
Frame rates with Cropping/ROI frame rates
Cropping is a functionality similar to ROI. By using a reduced area of the available
sensor, the payload is reduced, increasing frame rates. For details, see
The maximum frame rate which can be achieved depends on various values, such
as bandwidth, pixel format, exposure time, and ROI. Calculation of maximum
frame rates for different ROIs for Alvium CSI-2 cameras does not allow to give a
formula. Data is calculated for...
Availability of pixel formats
The availability of pixel formats depends on camera models and the abilities of the
connected system.